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H. Nishikiori · SciRah

Researcher profile · Semantic Scholar

H. Nishikiori

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H. Nishikiori — researcher profile on SciRah

h-index: 12
Works: 44
Citations: 526

Most-cited papers

Multicenter prospective evaluation study of endoscopic ultrasound‐guided hepaticogastrostomy combined with antegrade stenting (with video)
Takeshi Ogura, M. Kitano, M. Takenaka, Atsushi Okuda +12 more
2018Digestive Endoscopy80 citations
Semantic Scholar
Comparison of the efficacy and safety of endoscopic ultrasound‐guided choledochoduodenostomy and hepaticogastrostomy for malignant distal biliary obstruction: Multicenter, randomized, clinical trial
Kosuke Minaga, Takeshi Ogura, H. Shiomi, Hajime Imai +14 more
2019Digestive Endoscopy78 citations Open access
Semantic Scholar
Aerosols Produced by Upper Gastrointestinal Endoscopy: A Quantitative Evaluation.
R. Sagami, H. Nishikiori, Takao Sato, Hiroaki Tsuji +10 more
2020American Journal of Gastroenterology50 citations Open access
Semantic Scholar
Endoscopic placement of covered versus uncovered self-expandable metal stents for palliation of malignant gastric outlet obstruction
Kentaro Yamao, M. Kitano, Yasutaka Chiba, Takeshi Ogura +37 more
2020Gut41 citations Open access
Semantic Scholar
Clinical efficacy and safety of endoscopic ultrasound‐guided gallbladder drainage replacement of percutaneous drainage: A multicenter retrospective study
Kosuke Minaga, Y. Yamashita, Takeshi Ogura, M. Takenaka +13 more
2018Digestive Endoscopy41 citations
Semantic Scholar
Endoscopic shield: barrier enclosure during the endoscopy to prevent aerosol droplets during the COVID-19 pandemic
R. Sagami, H. Nishikiori, Takao Sato, K. Murakami
2020VideoGIE35 citations Open access
Semantic Scholar
Endoscopic ultrasound-guided biliary drainage for malignant biliary obstruction with surgically altered anatomy: a multicenter prospective registration study
Kosuke Minaga, M. Takenaka, Takeshi Ogura, Takashi Tamura +12 more
2020Therapeutic Advances in Gastroenterology28 citations Open access
Semantic Scholar
Endoscopic Ultrasound-Guided Rendezvous Technique for Failed Biliary Cannulation in Benign and Resectable Malignant Biliary Disorders
H. Shiomi, Kentaro Yamao, Noriyuki Hoki, T. Hisa +14 more
2018Digestive Diseases and Sciences27 citations
Semantic Scholar
True diagnostic ability of endoscopic ultrasound-guided fine needle aspiration/biopsy for small pancreatic cancer ≤10 mm and salvage diagnosis by pancreatic juice cytology: A multicenter study.
R. Sagami, J. Nakahodo, R. Minami, Kentaro Yamao +5 more
2023Gastrointestinal Endoscopy21 citations Open access
Semantic Scholar
Endoscopic transpapillary gallbladder drainage for acute cholecystitis is feasible for patients receiving antithrombotic therapy
R. Sagami, Kenji Hayasaka, T. Ujihara, Ryotaro Nakahara +8 more
2020Digestive Endoscopy20 citations
Semantic Scholar
Current Status in the Treatment of Acute Cholecystitis Patients Receiving Antithrombotic Therapy: Is Endoscopic Drainage Feasible?- A Systematic Review
R. Sagami, Kenji Hayasaka, H. Nishikiori, H. Harada +1 more
2020Clinical Endoscopy17 citations Open access
Semantic Scholar
Feasibility of endoscopic ultrasound-guided gallbladder drainage for acute cholecystitis patients receiving antithrombotic therapy
R. Sagami, Kenji Hayasaka, T. Ujihara, Ryotaro Nakahara +9 more
2020Annals of gastroenterology : quarterly publication of the Hellenic Society of Gastroenterology13 citations Open access
Semantic Scholar
Pancreatic juice cytology for diagnosing invasive pancreatic carcinoma/high-grade pancreatic intraepithelial neoplasia without visible tumors on endoscopic ultrasound.
R. Sagami, Kazuhiro Mizukami, H. Nishikiori, Takao Sato +7 more
2024Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]12 citations Open access
Semantic Scholar
Experience-Related Factors in the Success of Beginner Endoscopic Ultrasound-Guided Biliary Drainage: A Multicenter Study
R. Sagami, Kazuhiro Mizukami, Kazuhisa Okamoto, Chishio Noguchi +10 more
2023Journal of Clinical Medicine10 citations Open access
Semantic Scholar
Diagnostic Strategy of Early Stage Pancreatic Cancer via Clinical Predictor Assessment: Clinical Indicators, Risk Factors and Imaging Findings
R. Sagami, Takao Sato, Kazuhiro Mizukami, Mitsuteru Motomura +12 more
2022Diagnostics10 citations Open access
Semantic Scholar
Accurate Evaluation of Residual Common Bile Duct Stones by Endoscopic Ultrasound: A Two-Step Check Method for Residual Stone Clearance
R. Sagami, Kenji Hayasaka, T. Ujihara, Tomoyuki Iwaki +7 more
2022Digestion7 citations
Semantic Scholar
Strategy Comparison of Endoscopic Ultrasound-Guided Gallbladder Drainage to Percutaneous Transhepatic Gallbladder Drainage, Following Failed Emergent Endoscopic Transpapillary Gallbladder Drainage
R. Sagami, Kazuhiro Mizukami, Takao Sato, H. Nishikiori +1 more
2023Journal of Clinical Medicine5 citations Open access
Semantic Scholar
Endoscopic Mucosal Resection of Adenocarcinoma at the Minor Duodenal Papilla: A Case Report and Suggestions for the Optimal Treatment Strategy
Takao Sato, R. Sagami, H. Nishikiori, Hiroaki Tsuji +3 more
2021Internal medicine5 citations Open access
Semantic Scholar
Utility of Endoscopic Ultrasonography Screening for Small Pancreatic Cancer and Proposal for a New Scoring System for Screening
R. Sagami, H. Nishikiori, Katsuhiro Anami, S. Fujiwara +4 more
2018Pancreas5 citations
Semantic Scholar
Usefulness of AI-Equipped Endoscopy for Detecting Colorectal Adenoma during Colonoscopy Screening: Confirm That Colon Neoplasm Finely Can Be Identified by AI without Overlooking Study (Confidential Study)
Kazuhiro Mizukami, Erina Fushimi, R. Sagami, Takashi Abe +7 more
2023Journal of Clinical Medicine4 citations Open access
Semantic Scholar
Endoscopic Ultrasound Can Differentiate High-Grade Pancreatic Intraepithelial Neoplasia, Small Pancreatic Ductal Adenocarcinoma, and Benign Stenosis
R. Sagami, Kentaro Yamao, R. Minami, J. Nakahodo +7 more
2023Gut and Liver4 citations Open access
Semantic Scholar
Rupture of small cystic pancreatic neuroendocrine tumor with many microtumors
R. Sagami, H. Nishikiori, S. Ikuyama, K. Murakami
2017World Journal of Gastroenterology4 citations Open access
Semantic Scholar
Perilesional branch duct dilation as a hallmark MRCP feature for differentiating high-grade PanIN from low-grade PanIN.
Kentaro Yamao, Yasuo Takehara, H. Ogawa, J. Nakahodo +11 more
2025Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]3 citations Open access
Semantic Scholar
EUS‐Guided Versus Percutaneous Transhepatic Drainage of Liver Abscesses: A Multicenter Endohepatology Study in Western Japan (EPIC‐LA Study)
Takeshi Ogura, Taira Kuroda, T. Matsuura, Jun Kitadai +23 more
2025Digestive Endoscopy3 citations Open access
Semantic Scholar
Endoscopic ultrasound-guided transduodenal drainage of idiopathic retroperitoneal abscess in an immunocompromised patient
R. Sagami, Hiroaki Tsuji, H. Nishikiori, K. Murakami
2017Medicine3 citations Open access
Semantic Scholar
A Clinical Scoring Model to Predict Post‐Endoscopic Retrograde Cholangiopancreatography Pancreatitis in Biliary Endoscopic Retrograde Cholangiopancreatography for Patients With Intact Papilla: A Large Multicenter Prospective Cohort Study
Koichi Fujita, S. Yazumi, Hisakazu Matsumoto, M. Asada +14 more
2025DEN Open1 citations Open access
Semantic Scholar
Needle tip insertion technique for accurate and safe puncture in endoscopic ultrasound-guided tissue acquisition
R. Sagami, Y. Hiroshima, Yoshifumi Azuma, Hiroaki Tsuji +3 more
2024Endoscopy1 citations Open access
Semantic Scholar
Needle-tip insertion method for EUS–guided hepaticogastrostomy in puncturing a nondilated bile duct (with video)
Hiroaki Tsuji, R. Sagami, Takao Sato, H. Nishikiori +2 more
2026Endoscopic Ultrasound0 citations Open access
Semantic Scholar
Prospective multicenter study of EUS-guided hepaticogastromy with antegrade stent placement in patients with unresectable malignant biliary obstruction
M. Itonaga, H. Imai, K. Takeshita, R. Sagami +21 more
2026Endoscopy0 citations
Semantic Scholar
Accurate imaging diagnosis of small pancreatic carcinoma/high-grade pancreatic intraepithelial neoplasia using combined indirect imaging findings.
R. Sagami, Kazuhiro Mizukami, H. Nishikiori, Hiroaki Tsuji +19 more
2026Digestion0 citations
Semantic Scholar
Comparison of EUS-guided treatment and balloon-enteroscopy-assisted endoscopic retrograde cholangiopancreatography for large bile duct stone removal in patients with surgically altered anatomy: A multicenter study
R. Sagami, Kiyoyuki Kobayashi, M. Hinokuchi, Kosuke Takahashi +12 more
2026Endoscopic Ultrasound0 citations Open access
Semantic Scholar
Diagnostic value of indirect imaging findings for high-grade pancreatic intraepithelial neoplasia: A multicenter study.
Yusuke Kawamoto, G. Honda, Masataka Kikuyama, Yukiko Takayama +17 more
2026Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]0 citations
Semantic Scholar
Comparison of Genetic Mutations of Gastric Cancer Diagnosed before or after Helicobacter pylori Eradication and between Differentiated and Undifferentiated Types Using Next-Generation Sequencing
M. Kodama, M. Oda, Kazuhiro Mizukami, R. Ogawa +16 more
2025Digestive Diseases0 citations Open access
Semantic Scholar
Pancreatic juice cytology via a nasopancreatic drainage tube placed using the rendezvous technique through the accessory pancreatic duct
Yoshifumi Azuma, R. Sagami, Hiroaki Tsuji, Takao Sato +3 more
2025Endoscopy0 citations
Semantic Scholar
Successful removal of B3 bile duct stones from B2 bile duct endoscopic ultrasound-guided hepaticogastrostomy route using wire-loop and bridge technique
Hiroaki Tsuji, R. Sagami, Takao Sato, H. Nishikiori +3 more
2025Endoscopy0 citations
Semantic Scholar
Response to the Letter to the Editor regarding our manuscript: "Perilesional branch duct dilation as a hallmark MRCP feature for differentiating high-grade PanIN from low-grade PanIN".
Kentaro Yamao, Yasuo Takehara, H. Ogawa, J. Nakahodo +9 more
2025Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]0 citations Open access
Semantic Scholar
Calculus-targeted puncture technique to overcome access difficulty during endoscopic ultrasound-guided hepaticogastrostomy
Y. Hiroshima, R. Sagami, Yoshifumi Azuma, Hiroaki Tsuji +3 more
2025Endoscopy0 citations Open access
Semantic Scholar
Alternative endoscopic ultrasound-guided choledochogastrostomy for anatomical inaccessibility by usual biliary drainage methods
Hiroaki Tsuji, R. Sagami, Takao Sato, H. Nishikiori +3 more
2024Endoscopy0 citations Open access
Semantic Scholar
Complete extraction of main pancreatic duct residual and microstones using an 8-wire basket catheter
R. Sagami, Kazuhiro Mizukami, H. Nishikiori, Takao Sato +1 more
2024Endoscopy International Open0 citations Open access
Semantic Scholar
ENDOSCOPIC ULTRASOUND CAN DIFFERENTIATE HIGH-GRADE PANCREATIC INTRAEPITHELIAL NEOPLASIA, SMALL PANCREATIC DUCTAL ADENOCARCINOMA, AND BENIGN STENOSIS. A MULTICENTER COMPARATIVE STUDY．
R. Sagami, Kentaro Yamao, R. Minami, J. Nakahodo +6 more
2022Gastrointestinal Endoscopy0 citations
Semantic Scholar
切除不能遠位悪性胆道閉塞に対する超音波内視鏡下胆道ドレナージにおける choledochoduodenostomy およびhepaticogastrostomy のアプローチルートの有効性と安全性を比較検討する多施設共同前向き無作為化試験
Kosuke Minaga, Takeshi Ogura, Hideyuki Shiomi, Hajime Imai +14 more
20200 citations
Semantic Scholar
252 ENDOSCOPIC TRANSPAPILLARY GALLBLADDER DRAINAGE FOR ACUTE CHOLECYSTITIS IS FEASIBLE TO PATIENTS RECEIVING ANTITHROMBOTIC THERAPY
R. Sagami, Kenji Hayasaka, T. Ujihara, Ryotaro Nakahara +7 more
20200 citations Open access
Semantic Scholar
1041 SIMILAR EFFICACY AND SAFETY OF ENDOSCOPIC ULTRASOUND-GUIDED BILIARY DRAINAGE VIA HEPATICOGASTROSTOMY AND CHOLEDOCHODUODENOSTOMY APPROACHES FOR MALIGNANT DISTAL BILIARY OBSTRUCTION: A MULTICENTER, PROSPECTIVE, RANDOMIZED TRIAL
Kosuke Minaga, M. Kitano, Takeshi Ogura, H. Shiomi +10 more
2018Gastrointestinal Endoscopy0 citations Open access
Semantic Scholar
1038 A MULTICENTER PROSPECTIVE STUDY OF EUS-GUIDED HEPATICOGASTROSTOMY COMBINED WITH ANTEGRADE STENT PLACEMENT
Takeshi Ogura, M. Kitano, M. Takenaka, Kosuke Minaga +8 more
2018Gastrointestinal Endoscopy0 citations Open access
Semantic Scholar

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R. Sagami — researcher profile on SciRah
Kazuhiro Mizukami×18
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Kazuhiro Mizukami — researcher profile on SciRah
Takao Sato×16
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Kazunari Murakami×16
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K. Murakami — researcher profile on SciRah

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Takeshi Ogura×8

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Takeshi Ogura — researcher profile on SciRah

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M. Takenaka — researcher profile on SciRah

Yasutaka Chiba×8

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Y. Amano — researcher profile on SciRah

Kosuke Minaga×7

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Kosuke Minaga — researcher profile on SciRah

Y. Hiroshima×7

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Y. Hiroshima — researcher profile on SciRah